Danfoss VLT User Manual

4-12 Motor Speed Low Limit [Hz]
Range: Function:
0 Hz* [0 - par. 4-14 Hz] Enter the minimum limit for motor speed. The motor speed low limit can be set to correspond to
the minimum output frequency of the motor shaft. The Speed Low Limit must not exceed the setting
in par.4-14
Motor Speed High Limit [Hz] .
4-13 Motor Speed High Limit [RPM]
Range: Function:
1500. RPM* [par. 4-11 - 60000. RPM] Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to
the manufacturer’s maximum rated motor. The Motor Speed High Limit must exceed the setting in
par.4-11
Motor Speed Low Limit [RPM] . Only par.4-11 Motor Speed Low Limit [RPM] or par.
4-12
Motor Speed Low Limit [Hz] will be displayed, depending on other parameters in the main
menu, and depending on default settings dependant on global location.
NOTE!
The output frequency value of the adjustable frequency drive must not exceed a value higher than 1/10 of the switching frequency.
NOTE!
Any changes in par.4-13
Motor Speed High Limit [RPM] will reset the value in par.4-53 Warning Speed High to the same value as set
in par.4-13
Motor Speed High Limit [RPM] .
4-14 Motor Speed High Limit [Hz]
Range: Function:
50/60.0
Hz*
[par. 4-12 - par. 4-19 Hz] Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to
the manufacturer’s recommended maximum of the motor shaft. The Motor Speed High Limit must
exceed the in par.4-12
Motor Speed Low Limit [Hz] . Only par.4-11 Motor Speed Low Limit [RPM] or
par.4-12
Motor Speed Low Limit [Hz] will be displayed, depending on other parameters in the main
menu, and depending on default settings dependant on global location.
NOTE!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par.14-01
Switching Frequency ).
3-11 Jog Speed [Hz]
Range: Function:
10.0 Hz* [0.0 - par. 4-14 Hz] The jog speed is a fixed output speed at which the adjustable frequency drive is running when the
jog function is activated.
See also par. 3-80
Jog Ramp Time .
5-12 Terminal 27 Digital Input
Option: Function:
[0] * No operation Same options and functions as par. 5-1*, except for Pulse input .
VLT
®
HVAC Drive Instruction Manual
6 How to program the adjustable frequency
drive
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark 6-7
6

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)